rtime.d revision 14ea49401f3c8c61422aefbda43809e275f60c6c
41c16c6c5164134051839ddba34c790900dbaa61gryzor/*
41c16c6c5164134051839ddba34c790900dbaa61gryzor * CDDL HEADER START
41c16c6c5164134051839ddba34c790900dbaa61gryzor *
41c16c6c5164134051839ddba34c790900dbaa61gryzor * The contents of this file are subject to the terms of the
41c16c6c5164134051839ddba34c790900dbaa61gryzor * Common Development and Distribution License, Version 1.0 only
41c16c6c5164134051839ddba34c790900dbaa61gryzor * (the "License"). You may not use this file except in compliance
41c16c6c5164134051839ddba34c790900dbaa61gryzor * with the License.
41c16c6c5164134051839ddba34c790900dbaa61gryzor *
41c16c6c5164134051839ddba34c790900dbaa61gryzor * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
41c16c6c5164134051839ddba34c790900dbaa61gryzor * or http://www.opensolaris.org/os/licensing.
41c16c6c5164134051839ddba34c790900dbaa61gryzor * See the License for the specific language governing permissions
41c16c6c5164134051839ddba34c790900dbaa61gryzor * and limitations under the License.
41c16c6c5164134051839ddba34c790900dbaa61gryzor *
41c16c6c5164134051839ddba34c790900dbaa61gryzor * When distributing Covered Code, include this CDDL HEADER in each
41c16c6c5164134051839ddba34c790900dbaa61gryzor * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
41c16c6c5164134051839ddba34c790900dbaa61gryzor * If applicable, add the following below this CDDL HEADER, with the
41c16c6c5164134051839ddba34c790900dbaa61gryzor * fields enclosed by brackets "[]" replaced with your own identifying
41c16c6c5164134051839ddba34c790900dbaa61gryzor * information: Portions Copyright [yyyy] [name of copyright owner]
41c16c6c5164134051839ddba34c790900dbaa61gryzor *
41c16c6c5164134051839ddba34c790900dbaa61gryzor * CDDL HEADER END
41c16c6c5164134051839ddba34c790900dbaa61gryzor */
41c16c6c5164134051839ddba34c790900dbaa61gryzor/*
41c16c6c5164134051839ddba34c790900dbaa61gryzor * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
41c16c6c5164134051839ddba34c790900dbaa61gryzor * Use is subject to license terms.
41c16c6c5164134051839ddba34c790900dbaa61gryzor */
41c16c6c5164134051839ddba34c790900dbaa61gryzor
41c16c6c5164134051839ddba34c790900dbaa61gryzorsyscall::read:entry
41c16c6c5164134051839ddba34c790900dbaa61gryzor{
41c16c6c5164134051839ddba34c790900dbaa61gryzor self->t = timestamp;
41c16c6c5164134051839ddba34c790900dbaa61gryzor}
41c16c6c5164134051839ddba34c790900dbaa61gryzor
41c16c6c5164134051839ddba34c790900dbaa61gryzorsyscall::read:return
41c16c6c5164134051839ddba34c790900dbaa61gryzor/self->t != 0/
41c16c6c5164134051839ddba34c790900dbaa61gryzor{
41c16c6c5164134051839ddba34c790900dbaa61gryzor printf("%d/%d spent %d nsecs in read(2)\n",
41c16c6c5164134051839ddba34c790900dbaa61gryzor pid, tid, timestamp - self->t);
41c16c6c5164134051839ddba34c790900dbaa61gryzor
41c16c6c5164134051839ddba34c790900dbaa61gryzor /*
41c16c6c5164134051839ddba34c790900dbaa61gryzor * We're done with this thread-local variable; assign zero to it to
41c16c6c5164134051839ddba34c790900dbaa61gryzor * allow the DTrace runtime to reclaim the underlying storage.
41c16c6c5164134051839ddba34c790900dbaa61gryzor */
41c16c6c5164134051839ddba34c790900dbaa61gryzor self->t = 0;
41c16c6c5164134051839ddba34c790900dbaa61gryzor}
41c16c6c5164134051839ddba34c790900dbaa61gryzor